How does Evening Primrose Oil work?

Evening primrose oil contains "fatty acids." Some women with breast pain might not have high enough levels of certain "fatty acids." Fatty acids also seem to help decrease inflammation related to conditions such as arthritis and eczema.

Are there safety concerns?

Evening primrose oil is safe for most people. It can sometimes cause mild side effects including upset stomach, nausea, diarrhea, and headache.

There is some concern that evening primrose oil might increase the chance of problems during pregnancy and delivery.